Abstract:
Disclosed are azo dyes of formula (1) , wherein R 1 is hydrogen; C 1 -C 14 alkyl; hydroxy- C 1 -C 14 alkyl; C 2 -C 14 alkenyl; a radical of formula (1a) -(CH 2 ) n1 -O-(CH 2 ) n2 -CH 3 ; a radical of formula (1b) C 10 aryl; or C 6 -C 10 aryl-C 1 -C 6 alkyl; R3 is hydrogen; C 1 -C 14 alkyl; C 2 -C 14 alkenyl; C 6 -C 10 aryl; C 6 -C 1 0aryl-C 1 -C 6 alkyl; or CO-R 6 ; R 4 is CO-R 6 ; R 5 is C 1 -C 14 alkyl; C 2 -C 14 alkenyl; C 6 -C 10 aryl; or C 6 -C 10 aryl-C 1 -C 6 alkyl; R 6 is hydrogen; C 1 -C 14 alkyl; C 2 -C 14 alkenyl; or C 6 -C 10 aryl; R 7 , R 8 , R 9 and R 10 , independently from each other are hydrogen; or C 1 -C 5 alkyl; m is 1; or 2; An - is an anion; If m = 1, R 2 is hydrogen; C 1 -C 14 alkyl; C 2 -C 14 alkenyl; a radical of formula (1a); a radical of formula (1b) ; C 6 -C 10 aryl; or C 6 -C 10 aryl-C 1 -C 6 alkyl; If m = 2, R 2 is the direct bond; or C 1 -C 14 alkylene, which is optionally substituted by one or more C 1 -C 4 alkyl, or which is optionally interrupted by C 5 -C 10 arylene, -O- or -NR 9 R 10 -; R 9 and R 10 , independently from each other are hydrogen; or C 1 -C 5 alkyl; and n1, n2, n3 and n4, independently from each other are a number from 0 to 5. The compounds are useful for the dyeing of organic material, preferably human hair.
Abstract:
Disclosed are azo dyes of formula (1) , wherein R1 is hydrogen; C1-C14alkyl; hydroxy- C1-C14alkyl; C2-C14alkenyl; a radical of formula (1a) -(CH2)n1-O-(CH2)n2-CH3; a radical of formula (1b) C10aryl; or C6-C10aryl-C1-C6alkyl; R3 is hydrogen; C1-C14alkyl; C2-C14alkenyl; C6-C10aryl; C6-C10aryl-C1-C6alkyl; or CO-R6; R4 is CO-R6; R5 is C1-C14alkyl; C2-C14alkenyl; C6-C10aryl; or C6-C10aryl-C1-C6alkyl; R6 is hydrogen; C1-C14alkyl; C2-C14alkenyl; or C6-C10aryl; R7, R8, R9 and R10, independently from each other are hydrogen; or C1-C5alkyl; m is 1; or 2; An is an anion; If m = 1, R2 is hydrogen; C1-C14alkyl; C2-C14alkenyl; a radical of formula (1a); a radical of formula (1b) ; C6-C10aryl; or C6-C10aryl-C1-C6alkyl; If m = 2, R2 is the direct bond; or C1-C14alkylene, which is optionally substituted by one or more C1-C4alkyl, or which is optionally interrupted by C5-C10arylene, -O- or -NR9R10-; R9 and R10, independently from each other are hydrogen; or C1-C5alkyl; and n1, n2, n3 and n4, independently from each other are a number from 0 to 5. The compounds are useful for the dyeing of organic material, preferably human hair.